Burnishing barrel



May 19, 1925. 1,538,231

G. E. ABBOTT BURNISHING BARREL Filed April 18, 1922 2 Sheets-Sheet lE/VTOI? %'Y G. E. ABBOTT BURNISHING BARREL Filed April 18, 1922 2Sheets-Sheet 2 tion.

Patented May 19, 192 5.

i sures esca es nnB oTT, OF WEST HARTFORD CQ-NNEGTZCUT, nssrenon To THEABBOTT BALL centre-NY, or WEST HARTFORD, oommoTieoT, A CORPORATION orcon- 'NECTICUT.

BURiiisHING BARitiii.

{Application fired April is, n22. sense at; 555cm.

To all whom it may concern;

' Be t known that I, Genet E. ABBOTT, a citizen of the United States,and aresident otlVst Hartford, in the county of Hart 5 and and State ofConnecticut, have invented a new and Improved Burnish'ihg Barrel, ofwhich the followin is a specification.

My invention relates to the class of dell? vices employed for impartingafinish to metallic articles, and an object of my inventioi'i,

among others, is ,to provide ad'evice of this class that shall beparticularly convenient to use, and one in which the results obtained 5shall be particularly effective.

One form of burnishing barrel en'ibody ing my invention and in theconstruction and'use of which the object's herein set out, as Well asothers may beattain'echis illustrated in the accom anying; drawings, in

which i v Figure l is a vieiv in end elevation of a tarnishing barrelembodying my il'ivention with parts broken away'to shoi'v construc-Figure 2 is a view in side elevation of said barrel With parts brokenaway to sh'oW. construction.

Figure 3 is a detail view of the upper part of the receptacle or barrel,partially broken away, and illustrating the work holder mounted for freerotation. v

Figure 4 is a detail end View, scale enla'rged, of the Work holder shownas removed from the receptacle and of alittle dilf rent constructionfrom that shown in Figures 1 and 2. y e p Figure his a view in frontelevation of the Work holder sh'oxvn iii Figure 1.

' Figure 6 is afdetail View of a Work holder "support mounting aplurality of Work holders. g

Fi ur'e 7 is a-nen d View oi the same, 7 T Figure 8 is a view lookingtoward the under surface of the work holder;

It has been fcus'to'mary heretofore, in the construction and use ofburnishing apparatus, to secure the articles to be burnished ithin theburnishing receptacle to rotate therewith, and to permit the burnishingmaterial, that is placed loosely in the receptacle, to freely actup'onsucharticles as the receptacle {is rotated. I have found that ifthe articles to be burnished are permitted or caused tote moved Withinthe receptacle,

improved results in the burnishing operation are obtained, and it is,the'rei?ore, a purpose of the present invention device inwhichjinovenient of the articles to bebnrni'sh'ed with respect to theburnishing material shall i While such articles are secured to asupport, and the present invention, therefore, cont'cmplates anystructure in which such relative .n'io'vcmen't of the articles to bebutnishe'd, with respect to the burnishing material and While secured toa support, shall be caused or permitted. Di fierent arrange ments ofmechanism for securing this result are illustrated in the drawingsherein in which the numeral 5 indicates standards for the support oftrunnions 6 projecting" from opposite ends of a receptacle 7 withinwhich the articles to be burnished are placed. This receptacle isrotated as by means of age i- 8 meshing with a pinion 9 secured to adriving shaft 10 that may be driven as by means of a belt passing overpulleys 11 in a manner that will be readily understood. I I Thereceptacle illustrated herein is in the form of an octagon, the severalflat sides being provided with openings 12 that are closed by ivorkholder supports 13 nicely fitting said openings and held in place as bymeans of springs let secured by cover plates 15 held by cover clamps 16.The ends of vthese cover clamps engage underneath clamping shoulders 17formed on the ends of the receptacle, and the cover plates are securedto the cover clamps asby -means of cover studs 18, and clamp bolts 19may be e'l-nployed to force the cover plates into close contact with theouter surface of the receptacle, a packingQO being employed, it desired,between the cover plates andthe outer surface of the receptacle. All ofthe parts thus far described comprise the subject matter of an inventionheretofore made by me and embodied in application filed August 26, 1921,of Serial-Number 495,521, and, therefore, except in connection withelements to he hereinafter described, form no pa'rt of the presentinvention; 7 y

In the use of devices of this class it is very desirable that thereceptacles be kept in continuous operation and, therefore, that meansbe provided for quickly placing the articles to be receptacle, and tothisend removable Work to provide a e caused orpermitted, and

burnished in position the V holder supports are provided and to whichsupports the articles to be burnished may be fixed when the parts areremoved from the receptacles and while the receptacles are in operation,and which supports may be quickly secured in place when the receptacleis stationary for the purpose of removing therefrom supports carrying articles burnished within the receptacle and for securing the othersupports having articles attached thereto within the openings in thereceptacle. In that form of apparatus embodying the invention andespecially as illustrated in Figures 1 and 2, work holders arepreferably removably secured to the work holder supports, these workholders comprising bearing arms 21 projecting away from the face of thework holder supports and comprising bearings for work holder shafts 22mounted in said arms and having work fixtures 23 projecting therefrom.These work holders will be of any suitable construction and arranged tohold the articles to be burnished, such fixtures illustrated hereinbeing in the form of screw studs to receive the screw threaded openingsof articles to be burnished, as for illustration, oil cans 2 1, whicharticles, as, cans, are placed in the receptacle for the purpose ofbeing burnished.

As hereinbefore stated it is desirable to impart movement to thearticles to be burnished, and for this purpose shafts 25 are rotatablymounted in one end of the receptacle, extending from the interior of thereceptacle to the outer side thereof through openings that will besupplied with suitable means for preventing escape of liquid from withinthe receptacle. These shafter have pinions 26 meshing with a gear 27,the latter being loosely supported on one of the trunnions 6, but heldagainst rotation in. any suitable manner as by an arm 28. The inner endsof the shafts 25 will be provided with any suitable means for removablyengaging the ends of the work holder shafts 22, such means being soarranged that the shafts 22 may be readily disengaged for the purpose ofremoving the work holder supports 13. In the form herein shown a squaredsocket is formed in the ends of the shafts 25 to engage the squared endsof the work holder shafts 22, the engagement being loose enough topermit ready disengagement of the aarts.

In the operation of this device it will be readily seen that when aburnishing operation is finished the openings to the receptacle may bereadily uncovered, and the work holder supports removed therefrom, andother work holder supports immediately placed therein, and while thereceptacle is in operation to burnish the articles just placed thereinthe burnished articles may be detached from the removed work fixture andother articles to be burnished secured thereto ready for the nextoperation. As the receptacle is rotated the pinions 26 in mesh with thestationary gear 27 will cause the holder shafts 22 to be rotated, andthe articles to be burnished will, therefore, be rotated through theburnishing material located in the receptacle, and such material willalso be separately moved by centrifugal action and by gravity as thereceptacle is rotated.

While I have shown in the apparatus above described work holders aspositively driven within a rotating receptacle I contemplate many otherarrangements for securing this result, as for instance a work holdershaft 29 loosely mounted in the arms 21 and as illustrated in Figure 3of the drawings. In this arrangement the work holders with the articlesto be burnished thereon will be permitted to rotate by action of theburnishing material upon such articles, and by gravity, centrifugalforces and the like.

In the structures herein shown the burnishing receptacle is rotatedwhile the work holder shafts are positively driven or free to rotate,but I contemplate structures in which the work holder shafts may be soarranged and in which the receptacle need not of necessity be rotated,but in which the relative movement between the burnishiug material inthe receptacle and the articles to be burnished may be otherwiseobtained.

In that form of my improved structure shown in the enlarged views inFigures t and 5, the work holding fi ures are separately formed from afreely rotatable shaft 30 and are secured thereto in sets 31, each setcomprising a number of radial arms, three being illustrated, which armsare formed at their ends for attachment to the articles being burnishec.The sets are spaced one from another by spacers 32, and said sets andspacers are secured in place as by means of nuts 33 engaging screwthreaded end portions of the shaft. The sets of holders are so arrangedthat the articles to be I burnished may overlap one another asillustrated in Figure 5 of the drawings.

In that form of work holder illustrated in Figures 6 to 8 inclusive thework holder shafts, instead of having their axes parallel with the innerface of the work holder support 13, as in the devices shown in thepreceding figures of the drawings, have such axes arrangedperpendicularly to the inner face of such support. In this constructiona supporting strap 34 is secured to the end of supporting posts 35secured to the work holder support 13 and projecting from its innerface. Work holder shafts 36 are rotatably mounted, one end of each shaftbeing mounted in the work holder support and the other in the supportingstrap 34. These shaftswill be provided with any suitablemeans to receivethe articles to be burnished, which articles are in for the reception ofarticles to be burnished, a work holder support closing said opening, awork holder mounted upon said support withm the receptacle, m'eans forcausing relative'movement betweensald holder'and said receptacle andburnishing material within the receptacle, said holder including meansto removably receive articls to be burnished.

2. Ajreceptacle having an opening thereinto,,a work holder supportclosing said opening, a. Work holder rotatably mounted in bearingscarried by said support within the receptacle, means forcausing relativemovement between said holder and burnisln ing material within thereceptacle, and

means upon said holder to removably receive articles to be burnished.

3. A receptacle having an opening to its interior, a Work holder supportreniovably secured within said opening, -arms projecting from saidsupport, a work holder shaft rotatably mounted in'said arms, and meansupon said shaft to remova'bly receive articles to be burnished. Y

4. A receptacle having an opening to its interior, means for rotatingthe receptacle, a work holder support removably secured Withinsaidopening, arms projecting from said support, a work holder shaftrotatably mounted in said arms, and means upon said shaft to removablyreceive articles to be burnished.

5. A receptacle having an opening to its interior, a work holder supportremovably secured Within said opening, arms pr0 ecting from saidsupport, a work holder shaft rotatably mounted in said arms, means forrotat ng said shaft, and means upon said shaft to removably receivearticles to be burnished. H v A 6. A receptacle having-an opening to itsinterior, a work holder support removably secured within said opening,arms projecting from said support, a work holder shaft rotatably mountedin said arms, means detachably engaging said shaft and arranged torotate it, and means upon said shaft to reinovably receive articles tobe burnished.

7. A receptacle having an opening to its interior, means for rotatingthe receptacle, a work holder support removably secured within saidopening, arms projecting from said support, a Work holder shaftrotatablymounted in said arms, and work holdersprojecting laterally from saidshaft and having means to removably receive articles to be burnished. I

8. A receptacle having an opening there- I into for the reception ofarticles to be burnished, a work holder support closing said opening, -aWork holder mounted upon said support" within the receptacle, means forcausing relative movement between said holder and said receptacle andburnishing material within and independently of the receptacle, saidholder including means to removably receive articles to be burnished.

' GEORGE E. ABBOTT.

